Manifolding machine



Jan. 16, 1940. c w BRENN MANIFOLDING MACHINE Filed Sept. 28, 1935 20' Fig.1

'lIlIIIIIIIIIIIll IIIIIIIJ FIIIII/lillii Patented Jan. 16, 1940 UNITED STATES PATENT OFFICE MANIFOLDING MACHINE Carl W. Brenn, Montclair, N. J assignor to Autographic Register Company, Hoboken, N. 1., a corporation of New Jersey Application September 28, 1935, Serial No. 42,623

'1 Claims.

This invention relates to manifolding.

An object of this invention is to provide an improved means for locating and holding carbon sheets between the interleaved record sheets on the platen of the machine.

This means, in its preferred form, comprises a thin sheet metal bar clamped on the rear edge of a carbon sheet and adapted to otherwise hold and retain said sheet, and having a pair of aper: tures adapted to be slipped over hooks carried by the platen or other appropriate part of the a record slip partly cut away to show the carbon paper and the clamping ban Fig. 2, is a side view of the machine partly in section on line 2-2 of Fig. 1,

Fig. 3 is an enlarged top view of a clamping clamping bar of the type shown in Fig. 3,. aboutto receive .and clamp a sheet of carbon paper.

Fig. 6 is an enlarged detail drawing of a modified form of the grasping and retaining means adapted to the metal clamping bar of the present invention. a

Fig. '7 is a section taken on the line 1-1 of Fig-.6-

Fig. 8 is an enlarged detail view of another modified form of grasping and retaining means as adapted to the metal clamping bar of the present invention.

Fig. 9 is a section on line 9--9 of Fig. 8.

The present invention is herein illustrated as applied to' a portable or hand-held type of manifolding machine, but it should be distinctly understood that the improvements may be applied to full-size or any other size or type of machine.

The machine illustrated is made of sheet metal blank and stamp having a bottom Ill, sides I l, a front wall l2, and a rear wall l3 formed in one piece. .4 platen or writing bed I4 is pivotally mounted in the upper portion of the machine. On the sides of the rearward or introductory portion of the platen, and integral with the same,

are hooks [5 which project upwardly and vertically, and are directed backwardly.

In the machine of the present invention, the carbon paper I6 is provided with an inexpensive sheet metal bar I'l, folded upon itself to clamp the rear margin of the carbon paper and otherwise adapted to hold it, and having ears l8 provided with elongated apertures [9 which are designed to be slipped over the hooks l5 of the platen. The bar ll guides the record sheets 20 of the book or pile of sheets 2| over and under the rearedge of the carbon paper l6 and protects the latter against being torn by protuberances on the sheets.

In use, when the sheets 20 advance forwardly over the platen I4, the tendency is to drag the longitudinally extending carbon sheet forwardly with them. This forward force is transmitted to the bar ll holding the carbon paper, and causes said bar to be securely retained in the jaws of the rearwardly directed hooks l 5. However, the above action, which is desirable in retaining the bar I! in the hooks l5, also tends to separate the carbon paper Hi from its holding bar H. I

In the present invention, means are provided whereby the carbon paper I6 is securely gripped in the metal holding bar I! against separation. According to the present preferred form of the invention, a bar I! (see Fig. 3) consisting of a fiat metal strip folded on itself, clamps the margin of the carbon paper 16. The upper part or leaf of the bar I! is provided with indentations, the under portions of which form inwardly directed protuberances 22 (see Figs. 3 and 5), which pierce the carbon paper l6, and which contact and press against the inner face 23 of the under leaf, of the bar. Thus, the protuberances 22 act like pins or rivets through the bar and the carbon paper, and the effect is to securely hold the carbon paper in said metal bar and against separation therefrom, The above means for securing the carbon paper in the bar is particularly desirable, because it is effective and economical to folding said strip over on itself to grasp the margin of the carbon paper I6. Fig. 4 shows a section of the carbon paper I6 and bar ll taken on line 4-4 of Fig. 3, said bar being held in a book 15 of the writing bed l3. The record sheets 20 are passing one above the bar I! and the carbon paper, and one below the bar and carbon paper.

A modified form of the holding bar I! is shown in Fig. 6. The bar Ila is provided with apertures 24 in its under part or leaf, and with corresponding V-cuts 25 in its upper leaf.

The V-cuts are so located that when the blanked strip, which forms the bar Ila, is folded on itself and is clamping the carbon paper, said V-cuts are over the apertures 24. The tabs 26 formed by the V-cuts 25 may then be pushed through to pierce the paper, and may be folded the bar Ila will lie substantially fiat with no outward protuberances, and yet will and retain the carbon paper 15a.

A second modification of the carbon paper holding bar of the present invention is shown in Figs. 8 and 9. In Fig. 8, V-shaped notches 2"! are cut in the upper part or leaf of the bar lib, andV-shaped tabs 28 are formed onthe under leaf of said bar. Afterthe blanked strip which forms the bar 1717 has been folded on itself to clamp the carbon paper lfib, the tabs 28, (see Fig. 9) are bent upwardly to pierce said paper, and are folded back and against the latter, occupying thereby the notches 21in said bar. The carbon paper 16b is thus held securely by the bar Nb, and said bar has no outward protuberances to undesirably augment its thickness or to catch or tear record sheets which pass over or under it.

- The carbon holding metal bars, as disclosed by the present invention, provide for securely holding and'retaining the carbon sheets in manifolding machines; and for guiding the record sheets of said machines over and under the rear edgeof said carbon sheets, and for protecting the latter from beingtorn by the forward movement of said record sheets. Moreover, the means employed in the carbon holding bars of the present invention to pie rce and otherwise secure the carbon sheets does not materially add to the thickness of'said barsand therefore does not cause undue bulkiness when several bars are employed, one on top of theother.

Variations and modifications may be made within the scope of this invention, and portions of the improvements maybe used without others.

Having thus described the invention, I claim:

1. Ina manifolding machine, a platen. over which worksheets are advanced; means for sup-v porting carbon sheets. between the worksheets comprising transversely disposed bars; hooks on the platen. adapted to engage apertures in said bars, said hooks being directed rearwardly whereby the bars are maintained on the hooks by the drag imparted to the carbon sheets by the advancing worksheets.

2; In a manifolding machine, a platen over which worksheets are advanced; means for sup-. porting carbon sheets between the worksheets comprising transversely disposed bars; and hooks onthe platen adapted to engage apertures in said bars, said hooks being directed rearwardly whereby the bars are maintained on the hooks by the. drag imparted to the carbon sheets by the.

advancing worksheets and said hooks being parts of plate-like elements extending in the direction of advance of the worksheets to engage the sidesof the latter while said sheets are being advanced in proper interleaved relation with the carbon sheets.

'3. The invention as defined in claim 1, in which said apertures are elongated transversely of the se ure ho d bar, and there are mounting devices for said I hooks having worksheet guiding surfaces extendwhereby the bars are maintained on the hooks by drag employed to the carbon sheets by the back over the same, and occupy thereby the apertures 24 of the lower leaf of the bar 11.; Thus advancing worksheets, said bars each comprising fa strip of'thin material of greater length than the width of either the carbon sheet or the worksheet and being-- longitudinally folded on itself to which worksheets are advanced; and means for supporting carbon sheets between th worksheets comprisingtransversely disposed bars and hooks on theplaten adapted to engage apertures in said bars, said hooks being directed rearwardly whereby the bars'are maintained on the hooks by drag employed to the carbon sheets by the advancing worksheets, {said bars each comprising a strip of thin material of greater length than the width of either the carbon sheet or the worksheet and beinglongitudinally folded on itself to provide two flat parallel leaves for engaging between them a"marginal portion of the carbon sheet across the width thereof with said leaves so close together as to be separated merely by the thickness of the carbon sheet with one leaf having integralportions struck out therefrom and presenting arcuate' cutting edges forming piercing elements for the sheets andv being of a height just suflicient to pierce the carbon sheet and being longitudinally folded on itself to provide two flat parallel leaves for engaging between them a marginal, portion of the carbon sheet across the.

width thereof :with said leaves so close together as to be separated merely by the thickness of the carbon sheet with one leaf having integral portions struck out therefrom and presenting angularly. arranged'piercing elements for the sheets and being ofa height just sufiicient-to pierce the carbon sheet and. nonpenetratingly press against the flat surfaces presented by the other leaf.

7. In a manifolding machine, a platen over which'worksheets are advanced; and means for supporting" carbon sheets between the worksheetsv ompr sin t r y isp se ar nd oks on the platen adapted to engage apertures in said bars, said hooks being directed rearwardly whereby the bars are maintained on the books by drag employed to the carbon sheets by the advancing worksheets, said bars each comprising a strip of thin material of greater length than the width of either the carbon sheet or the worksheet and being longitudinally folded on itself to provide two flat parallel leave ior engaging between them a 10 marginal portion of the carbon sheet across the width thereof with said leaves so close together as to be separated merely by the thickness of the carbon sheet with one leaf havingintegral portions struck out therefrom and presenting teats which are broken open at their tops to provide piercing elements for the sheets and being of a height just sufficient to pierce the carbon sheet and nonpenetratingly press against the flat surfaces presented by the other leaf.

CARL W. BRENN. 

